Meet the Dormer Pramet A110 5/8 inch HSS Straight Shank Long Series Drill (DIN 340) — a purpose-built solution for deep, precise hole-making in a range of metals. This drill combines robust geometry with practical durability, so you can trust it from the first pilot hole to the last pass.

What makes this drill stand out

• 118° conventional point for clean starts and strong entry. The geometry resists wandering, and the point is easy to re-grind when you notice wear, helping you extend tool life without sacrificing accuracy.
• Steam oxide finish minimizes built-up material on the cutting edge, improving chip flow and reducing workpiece sticking. This is especially beneficial when drilling through materials that tend to smear or gum up conventional coatings.
• Long length series designed for deeper holes and applications requiring extra reach. The extended flute length maintains rigidity while enabling through-holes and pockets that standard drills can’t access.
• Premium HSS material—exceptional performance across a broad spectrum of metals, including steel, aluminium, and stainless steel. The high-speed steel blend delivers reliable cutting action and longevity under typical shop conditions.
• DIN 340 compatibility ensures a consistent shank diameter and fit for a wide range of drill chucks and holders, making it a dependable choice in both handheld and machine setups.
• Versatile in practice this drill is equally at home in portable hand drills, drill presses, and CNC or manual machines, offering flexibility across projects and workflows.

Designed for professionals who demand precision and enduring value, the A110 5/8 inch drill is ideal for fabricators, maintenance technicians, and metalworkers tackling thicker workpieces or materials that require extra reach. Whether you’re piercing through thick steel plates, drilling through extruded aluminum, or creating precise holes in stainless components, this long-series drill keeps its edge and stays true to size.

Practical tips for best results

• Match speeds and feeds to the material: softer metals like aluminum respond well to moderate spindle speeds; harder steels benefit from cautious, steady progress and adequate lubrication.
• Use a sharp, clean pilot hole when drilling into harder workpieces to minimize deflection and maximize hole accuracy.
• When re-grinding, maintain the 118° point geometry to preserve starting accuracy and reduce chatter in subsequent passes.
• Apply a light cutting fluid or coolant to improve chip evacuation and edge life, especially on longer drilling operations.

With the Dormer Pramet A110, you’re choosing a drill that blends dependable performance with practical design—delivering deep, clean holes in a variety of metals, consistently and efficiently.